r2 ringback heard after second ringing

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Dec 18th, 2007
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I have a r2 digital, compelled and is working fine but the ringback is heard after 7 to 8 seconds (after second ringing on the other side) if the user called answer the phone (in the first ringing) the calling side never heard the ringback. I have tried change the Dnisdigits and worked only for one side but isnot working from the side that is originating is coming from ccm going to r2 to other side

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smahbub Wed, 12/26/2007 - 10:28
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Analog voice signalling in VoIP is sent via an analog voice port. Analog voice ports support three basic voice signalling types:

"FXO. Foreign Exchange Office interface. The FXO interface is an RJ-11 connector that allows a connection to be directed at the PSTN central office (or to a standard PBX interface, if the local telecommunications authority permits). This interface is of value for off-premises extension applications.

"FXS. The Foreign Exchange Station interface. This interface is an RJ-11 connector that allows connection for basic telephone equipment, keysets, PBXs, and supplies ring, voltage, and dial tone.

"E&M. The "ear and mouth" interface (or "recEive and transMit") interface. This interface is an RJ-48 connector that allows connection for PBX trunk lines (tie lines). It is a signalling technique for 2-wire and 4-wire telephone and trunk interfaces.


paolo bevilacqua Wed, 12/26/2007 - 10:37
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Why is that you guys from "bytes and sites", invariably provides answers that are unrelated to the specific questions, consist only almost random of copied documentation, and do not help at all ?


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